scholarly journals Spectrum Handoff Aware AODV Routing Protocol for Cognitive Radio Vehicular Ad Hoc Networks

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Abdur Rashid Sangi ◽  
Mohammed S Alkatheiri ◽  
Satish Anamalamudi ◽  
Mohammed A. Alqarni ◽  
Muhammad Hammad Memon ◽  
...  
Keyword(s):  
Cognitive Radio ◽  
Routing Protocol ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Application Performance ◽  
Spectrum Handoff ◽  
Tcp Protocol ◽  
End To End ◽  
Hoc Networks ◽  
Aodv Routing Protocol

End-to-end application performance and throughput of vehicular cognitive transport control protocol depend on how efficiently the segments (TCP header) are being transmitted from source to destination. One way to enhance the performance of vehicular cognitive TCP protocol is by reducing the packet drops in between the source and destination. In general, packet drops occur in between the source and destination of Cognitive Radio Vehicular Ad Hoc Network (CR-VANET) because of spectrum handoff or cognitive node handoff, or network congestion. In this paper, we focus on enhancing the performance of cognitive TCP protocol through “cognitive AODV routing protocol with the spectrum handoff mechanism.” In the proposed work, channel-route control messages of cognitive AODV routing protocol are updated with the support of spectrum handoff which helps to provide the backup opportunistic channel during PU active and helps to reduce the end-to-end spectrum handoff packet drops. Simulation results reveal that the overall performance of the vehicular cognitive TCP protocol with the proposed spectrum handoff aware cognitive AODV routing protocol is enhanced as compared to the existing cognitive TCP protocol.

scholarly journals Performance Analysis of ECDSA Based SE-AODV Routing Protocol In VANETS

2018 ◽  
Vol 7 (3.16) ◽  
pp. 76
Author(s):  
Deepak . ◽  
Rajkumar .
Keyword(s):  
Routing Protocol ◽  
Network Performance ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Intelligent Transportation System ◽  
Secure Routing ◽  
The People ◽  
Main Challenge ◽  
Hoc Networks ◽  
Aodv Routing Protocol

Vehicular ad hoc networks is an emerging area for researchers to provide intelligent transportation system to the society. It is due to the wide area of applications of VANETs interest is developed among the people from different countries to be a part of it. Therefore many projects had been started and also presently working to implement VANETs in real world scenario. The main challenge in its implementation is to provide a secure mechanism against the various attacks and threats that have the capability to bring the network performance significantly down. In this paper to overcome different types of authentication based attacks in VANETs an ECDSA based secure routing protocol SE-AODV is proposed with security features incorporated in already existing AODV routing protocol. The performance of SE-AODV is evaluated and compared with original AODV and AODV with black hole attack (BH-AODV). The SE-AODV shows better performance with the parameters used for comparison with the variation in vehicle density, speed of vehicles and simulation time. 

Enhanced AODV Routing Protocol for Intelligent Attack Mitigation in Vehicular Ad-Hoc Networks

2021 ◽  
pp. 733-744
Author(s):  
Claude Mukatshung Nawej ◽  
Pius Adewale Owolawi ◽  
Tom Walingo
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocol ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Hoc Networks ◽  
Attack Mitigation ◽  
Aodv Routing Protocol

scholarly journals Reducing Accidents Through Detection of Black Hole Attack in VANETs

2020 ◽  
Vol 9 (5) ◽  
pp. 1056-1059
Keyword(s):  
Black Hole ◽  
Sensor Network ◽  
Routing Protocol ◽  
Packet Loss ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Black Hole Attack ◽  
Hoc Networks ◽  
Random Change ◽  
Aodv Routing Protocol

Vehicular ad hoc networks (VANETs) are upcoming prominent technology in the field of communication with vehicles. It is a combination of mobile and sensor network features. The random change in position of vehicles in VANET made the system more vulnerable to attacks. The most important attack in VANETs to be considered is Black hole attack which increases the chances for packet loss and in turn to accidents. There is a necessity to develop the techniques to detect Black hole attacks and reduce number of accidents. In this paper, a technique called “Detection of Black hole in VANET using AODV (DBVANETuAODV)” is proposed to find and prevent Black hole attack and thereby reducing occurrence of accidents. The proposed solution is implemented using AODV Routing protocol in VANET.The experiments are conducted with SUMO and NS2 simulators to depict network environment in an inexpensive way. The proposed method “DBVANETuAODV” is compared with AODV with black hole and the result shows the proposed method provides a significant improvement.

Energy Efficient CCC based AODV Routing Protocol for Cognitive Radio Ad-Hoc Networks

2014 ◽  
Vol 9 (2) ◽  
pp. 107-117 ◽  
Author(s):  
Satish Anamalamudi ◽  
Chang Liu ◽  
Minglu JIN
Keyword(s):  
Cognitive Radio ◽  
Ad Hoc Networks ◽  
Routing Protocol ◽  
Energy Efficient ◽  
Ad Hoc ◽  
Hoc Networks ◽  
Aodv Routing Protocol
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